449647769 has 8 divisors (see below), whose sum is σ = 474852672. Its totient is φ = 424914160.

The previous prime is 449647763. The next prime is 449647771. The reversal of 449647769 is 967746944.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 449647769 - 2¹⁶ = 449582233 is a prime.

It is a super-2 number, since 2×449647769² = 404366232333354722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449647763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115862 + ... + 119679.

It is an arithmetic number, because the mean of its divisors is an integer number (59356584).

Almost surely, 2^449647769 is an apocalyptic number.

It is an amenable number.

449647769 is a deficient number, since it is larger than the sum of its proper divisors (25204903).

449647769 is a wasteful number, since it uses less digits than its factorization.

449647769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235647.

The product of its digits is 9144576, while the sum is 56.

The square root of 449647769 is about 21204.8996460724. The cubic root of 449647769 is about 766.1094409912.

The spelling of 449647769 in words is "four hundred forty-nine million, six hundred forty-seven thousand, seven hundred sixty-nine".